Card counting is a technique which is employed by gamblers of card games to realize an edge by following cards which have been played. This provides the player an idea of the importance of cards, that have to be dealt with. Card counting is an ability that is more useful in chemin de fer than in other card game.

In twenty-one, a player has an advantage when the remaining deck contains "high cards." High cards can be tens or aces. The counter in the gambling hall uses such situations by laying larger wagers, as and when they happen. Several experienced gamblers use the makeup of the deck to change their overall course of action. Amateur gamblers sometimes have difficulty while performing rapid card counting and may be prone to mistakes, when it comes to working with dealt cards. Blackjack card counting is an enterprise by itself. millions and millions are made or lost, both by the gamblers and the casinos, based on card counting tactics in use.

Technology has made its impact on card counting too, with enhanced computing power affecting the complete activity. Traditional players will attest that a card counting scheme of greater complexity is more prone to problems, negating the increased accuracy permitted by the application of computers. Anyone can locate a lot of tactics for 21 card counting by going web sites dedicated to the game. With the game increasing in popularity in casinos around the planet, there are newer plans being created every other day. One can find easily thousands of Web pages providing you tricks on counting cards and the overall plan to earn profit playing black jack.